Fixing a bunch of issues with the MOAI Love wrapper

> Fixing a lot of issues with coordinates not being the same as in LOVE, not setting the background color, frame timing being incorrect, and making it so the love project can be run directly via love (without any changes) as well as through moai.

Not sure if you're still maintaining this at all, but I was looking at this to help me learn how to use Moai and ended up implementing a bunch of fixes, including making it so the sample can be run in Love without making any additional changes. 
The blend mode seems to be putting a black outline around the clouds. The blend mode appears to be correct (looked at the source for Moai and Love), but I think Moai might not handle PNGs as well, or there is another setting that needs to be flipped... But this is at least closer.